Songbird(Revision 623)

Songbird is a giant metallic bird-like creature that has been Elizabeth's caretaker and only friend for twelve years. Despite Songbird being robotic in nature, Songbird feels a sense of betrayal by Elizabeth's need and ongoing attempts to escape Columbia with Booker DeWitt.

BioShock Infinite's story not only focuses on the civil war between Founders and Vox Populi, but on the complex nature of Songbirds' and Elizabeth's relationship. Elizabeth knows any promise to destroy Songbird can't be fulfilled. In fact, she tries to convince Booker that if it comes to it, better he kill her than let Songbird take her back to her prison.[1]

In regards to their relationship, Ken Levine describes it as a parent/child relationship, but not necessarily an ideal parent/child relationship. [2] He goes on to make allusions to Stockholm Syndrome, a condition in which the captive eventually forms an incredibly strong bond with the person who has kept her imprisoned.

As far as Songbird's role in the game goes, Levine describes the metal beast as a "terminator-like force who is constantly dogging [Elizabeth and the player] as they move through this world." [3]